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Q: hw 23

A: Applying concept of deprotactation of alcohol.

Q: Please answer #1.

A:

Q: (20 points) Design two syntheses of the compound below using the Wittig reagent and a carbonyl compo...

A: The Wittig reaction is a chemical reaction of a carbonyl compound which can be aldehyde or ketone, w...

Q: Drag either anX or a to indicate if the model is an accurate representation of the nucleus of the el...

A: Zinc is a transition element from group 12 and period 4 of the periodic table. It has atomic number ...

Q: Can someone please help with question 14

A: The time which is required for the decay of one half of the amount of the species is called half lif...

Q: n an experiment, 3.25 g of NH3 are allowed to react with 3.80g of O2 in the following balanced react...

A: a. Given data : Mass of NH3 = 3.25 g                         Its molar mass = 17.03 g/mol Mass of O2...

Q: When 0.2004 g of calcium is heated in pure nitrogen gas, the sample gains 0.04670 g of nitrogen. Cal...

A: The mass of calcium is = 0.2004 g The mass of nitrogen is = 0.04670 g The empirical formula of calci...

Q: When the solid (NH4)20 is heated to 400 K, the following equilibrium occurs: (NH4)20(s) → 2 NH3(g) +...

A: The equilibrium reaction taking place is given as, => (NH4)2O (s) -------> 2 NH3 (g) + H2O (g)...

Q: How many grams of S are present in 4.22 grams of sulfur hexafluroride?  how many grams of sulfur hex...

A: Given,  Mass of SF6 : 4.22 g Molar mass of SF6 = 142 g/mol  

Q: Complete the following reactions. No reaction is a possible answer.

A:

Q: #12. For the column, "change in composition" you must chooose from the drop down menu... "go up, go ...

A:

Q: What is the structure of the compound if its formula is C5H10O, it exhibits 13C-NMR signals Broadban...

A:  13C NMR is commonly known as Carbon-13 nuclear magnetic resonance or carbon NMR. It is analogous to...

Q: Reactions Predict the product or products of the following reactions. If more than one product, ind...

A: The starting materials are

Q: Do 2 please

A: For 2: given: new length of olympic size pool =30m width of the pool = 25m

Q: Using standard heats of formation, calculate the standard enthalpy change for the following reaction...

A: Given reaction, 2CO(g) + O2(g) ----->2CO2(g) we know that, Enthalpy change ie; ∆H° = ∆H° of produ...

Q: How many grams are in 3.4 moles of C2H5OH molecules? (use molar mass and round answer to the correct...

A: Mass of 3.4 mole of C2H5OH = 156.34 g

Q: The pressure at the bottom of the Trench is 1.086 * 10^5 kilopasacals. What is the pressure in atmos...

A: Conversion Unit 1 kpa = 0.00987 atm Kilopascal and atm both are units of same unit pressure. To conv...

Q: QUESTION 5 The volume of a cylinder containing Ar(g) was initially 2.984 L at 220.3 °C; what wo...

A: Given :-  initial volume = 2.984 L                 initial temperature = 220.3 °C                 fi...

Q: 3

A: Given : Mass of water = 150 g Initial temperature of water = 23.0 oC And final temperature of water ...

Q: 1L of a solution of hydrogen peroxide is 15.2% by mass. What is the molarity of th solution? Assume ...

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the ra...

Q: How many mL of 4.50 M sodium hydroxide must be added to 250 mL of a 0.200 M acetic acid solution to ...

A: Given : Concentration of sodium hydroxide i.e NaOH = 4.50 M Volume of acetic acid i.e CH3COOH soluti...

Q: Draw the energy diagram for cyclooctatetraene dianion , C8H8 (2-) , molecular orbitals. The polygon ...

A:

Q: Type the abbreviated (noble gas notation) electron configuration for Cd:

A: Cd (Cadmium)  atomic number = 48   So, it has total 48 electrons which are to be filled in the incre...

Q: Write the equations for the acid-base reactions involved in this experiment. Clearly show the reacta...

A: Introduction: Extraction and filtration of an organic mixture are done on the basis of the solubilit...

Q: Finish the reaction shown

A: synthesis of grignard reagent from alkyl halide attack of grignard reagent (as nucleophile) to the c...

Q: The largest change in pH for an effective buffer occurs when the base is how many times as concentra...

A: Involved equation:- HA + H2O = H3O+ + A- As we know pH = pKa + log[Base]/[acid]  

Q: 25g of water and 25 g of iron at 20oC absorb the same amount of energy.  Will they reach the same te...

A: Specific heat :-  The amount of heat required to rise the temperature of one gram of a substance thr...

Q: 22 hw

A:

Q: Shown is one isomer of 2,4-dibromo-1,3,5-triethylcyclohexane. Draw the most stable achiral stereoiso...

A: Applying chair from and 1,3 diaxial interaction interpretation.

Q: Is my stucture correct based on the h nmr and c nmr?

A: NMR-spectroscopy is a technique to determine the structure of the organic molecules. The H1-NMR dete...

Q: A 1.00 liter solution contains 0.48 M ammonia and 0.37 M ammonium iodide. If 0.18 moles of hydrobrom...

A: The solution of NH3 and NH4I creates a buffer since you have a weak base (NH3) and the conjugate aci...

Q: Please draw out structural formula below:  1.   4-Methyl-3-penten-2-one 2.   4-Hydroxy-4-methyl-2-pe...

A: IUPAC name consists of three parts :-  prefix  word root  suffix

Q: hw help 3

A:

Q: help

A: All elements found on our planet form in outerspace. Ferrous/ Iron has the atomic number '26'. It is...

Q: 18

A:

Q: 7. What effect might the bicyclic ring system of cephalosporins have on their chemical and biologica...

A: Cephalosporins and Penicillina  are beta-lactum antimicrobials. Their ring structure is different wh...

Q: Draw 10 skeletal structures for isomers for a molecular formula of C7H10

A: Please find the answer attached here.

Q: How many moles are in 581 g of K2O?

A: 1 mole = 6.022×1023 [Avogadro number ] The mass of one mole of molecules of a substance is called it...

Q: Predict whether the entropy change is positive or negative for each of the following reactions. 2 KC...

A: Interpretation -  To predict weather entropy change is positive or negative for these following reac...

Q: Define Avogadro's number.

A: The molecular mass of a substance which is expressed in terms of grams is termed as gram molecular m...

Q: How many different molecules are drawn below?

A: Applying concept of IUPAC nomenclature of organic molecules.

Q: I need help with Letter B please help

A: We have to balance the given reaction 

Q: Ca(OH)2(aq) + HNO3(aq) → H2O(1) + Ca(NO3)2(aq)

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both...

Q: :Name the following molecule

A: Given molecule:  

Q: How an unknown acidic water sample could be analyzed in terms of its concentration by acid-base titr...

A: The acid in water given is H2SO4 and the base used for titration is KOH.  

Q: What is the purpose of stoichiometry?

A: Using concept of stoichiometry calculation of Chemical reaction.

Q: Calculate the equilibrium constant Kc for the net reaction shown below.    AgCl (s) ⇌ Ag+ (aq) + Cl−...

A:

Q: The Kb of dimethylamine [(CH3)2NH] is 5.90x10–4 at 25°C. Calculate the pH of a 0.103 M  solution of ...

A: Given : Concentration of (CH3)2NH = 0.103 M And Kb of (CH3)2NH = 5.90 X 10-4  Since (CH3)2NH is a we...

Q: What does the law of conservation of matter mean in chemistry? O a. The state of the matter should r...

A: The law of conservation of matter in Chemistry based on the fact that during a process total mass is...

Q: Can you help us with number nine as none of those answers seem correct to us.  The KSP does not chan...

A: In a chemical reaction, the reactants react to form the products. The solution in which no more solu...

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. 

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.